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6219M/C3VL0241 Electrically Insulated Ball Bearings

6219M/C3VL0241 Electrically Insulated Ball Bearings

The picture shows an electrical insulated bearing 6219M/C3VL0241. Its outer ring has an insulating coating and the cage is made of brass.
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of brass.
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of brass.
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of brass.
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of brass.
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of brass.

6219M/C3VL0241 – Quality Electrically Insulated Bearings for Motors & Generators

  • Electric Insulation Protection: Prevents stray current passage through the bearing to avoid electrical erosion damage.
  • High Compatibility: A direct drop-in replacement for standard 6219 series bearings, requiring no mechanical modifications to your existing motor housings or shafts.
  • EM & Flexible MOQ: Supports custom branding, packaging, and low MOQ for global buyers.
  • Wide Operating Conditions: Works across diverse industries including electric motors, pumps, compressors.
$ 289 /Each
  • Customized Logo: Min. Order 1 Piece
  • Customized Packaging: Min. Order 1 Piece
  • Inventory: In stock
  • Country of Origin: China
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Bulk orders will be discounted, please contact our sales for a bulk quote. We will ship your order via FedEx within 3-5 working days after you complete the payment and the related information will be sent to your email.
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    Description Interchangeable Features Application Q&A Related products

Product Parameters

  • Model 6219M/C3VL0241
  • Equivalent Interchange 6219M/C3VL0241 (SKF), 6219-M-J20AA-C3 (FAG), 6219-M-C3-SQ77 (NKE), 6219HDY2C3 (NSK), 7MC3-6219C3 (NTN)
  • Product Category Electrically Insulated Ball Bearings
  • Coating Suffix VL0241
  • Insulating Coating Types Insulation coating on outer ring
  • Manufacturers TFL
  • Bore Diameter 95.0 mm
  • Outside Diameter 170.0 mm
  • Width 32.0 mm
  • Net Weight 2.92 kg
  • Basic Dynamic Load Rating 114.0 kN
  • Basic Static Load Rating 81.5 kN
  • Reference Speed 8000.0 r/min
  • Breakdown Voltage (DC) 1000 ~3000 V
  • Layer Thickness 100~500 µm
  • Electrical Resistance 50~200 MΩ
  • Cage Material Brass cage
  • Radial Internal Clearance C3
  • ROHS Compliant
  • REACH Compliant
6219M/C3VL0241 Electrically Insulated Ball Bearings Drawing.dwg
Download DWG Download PDF

6219M/C3VL0241 Equivalent Interchange Brands

Many suppliers force high MOQs for “Brass Cage M-type” bearings, but TFL understands the market. We offer flexible MOQs—even for single pieces—and maintain stock for immediate dispatch. Our logistics are optimized for speed, ensuring your critical traction motor or generator isn’t down for weeks waiting for a part. Custom laser marking and packaging are also available to help distributors build their own brand identity.
TFL SKF FAG NKE NSK NTN
6219M/C3VL0241
6219M/C3VL0241
6219-M-J20AA-C3
6219-M-C3-SQ77
6219HDY2C3
7MC3-6219C3

Why Choose TFL 6219M/C3VL0241 Electrically Insulated Bearings?

The 6219M/C3VL0241 from TFL integrates an advanced insulated coating to protect against stray current damage — a leading cause of premature bearing failure in electric motors and rotating equipment.
The picture shows an electrical insulated bearing 6219M/C3VL0241. Its outer ring has an insulating coating and the cage is made of brass.

Features of 6219M/C3VL0241

  • VL0241 Aluminum Oxide coating on outer ring surfaces.
  • Bore 95mm, OD 170mm, Width 32mm.
  • Solid Machined Brass Cage (Suffix M), ball centered for stability.
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Common Applications of Electrically Insulated Bearings

Electrically insulated bearings are commonly deployed in applications where electrical discharge threatens conventional bearings. By preventing pitting, raceway fluting, and premature wear, they extend overall system service life. The protective insulation coating acts as a barrier against voltage-induced corrosion while maintaining efficient motion and proper load distribution. This is especially advantageous when combined with brass cages, which offer superior performance under high-speed and dynamic conditions.
electrical insulated bearing for motor

Electric Motors

In large electric motors such as the Siemens 1LA8 and 1PQ8 series—particularly in 315–355 frame sizes—the 6219M variant is often specified for the non-drive end (NDE) when the motor operates under heavy loads or in vertical mounting arrangements. During the rapid speed changes typical of VFD operation, the brass cage provides improved guidance for the rolling elements. The VL0241 insulation protects the NDE bearing from cyclic currents induced by the inverter.
Illustration of insulated bearing within a wind turbine generator

Wind Turbine Generators

Older utility-scale wind turbines, such as the Gamesa G8X platform, use asynchronous generators that are prone to bearing issues caused by electrical discharge and tower vibration. The 6219M/C3VL0241 is used for rotor support in these generators. The brass cage withstands continuous yaw motion and gust loading without deformation, while the insulation layer defends against high-frequency currents generated by grid-side converters.

insulated bearing for high-speed industrial pumps.

Industrial Water Pumps

Large multistage centrifugal pumps—such as Sulzer high-pressure boiler feed pump series—often operate at high speeds (3,000+ RPM). Brass cages offer inherent self-lubricating properties that protect the bearing during start-up. When these pumps are driven by VFDs to improve energy efficiency, adding VL0241 insulation prevents micro-arcing that would otherwise degrade the lubricant and generate noise.

*The brands and series mentioned are provided for industry illustration only. Final bearing selection should be confirmed through verification of dimensions, clearance class, insulation type, and operating conditions. For selection assistance or technical consultation, please contact the TFL engineering team for support.

Q&A

Can I directly replace a standard 6219-C3 bearing with an insulated 6219M/C3VL0241?

Yes. The dimensions (95 × 170 × 32 mm) are fully identical to the ISO standard 6219 bearing, allowing direct replacement as an upgrade. By switching to 6219M/C3VL0241, you gain two key benefits: VL0241 insulation prevents inverter-induced electrical corrosion & The brass cage provides superior mechanical durability.

What are the advantages of choosing the “M” (brass cage) version for motor applications?

The 6219M/C3VL0241 uses a machined brass cage (“M”), which offers significantly higher reliability than pressed steel cages. Brass cages are heavier, stronger, and naturally self-lubricating. If your equipment operates under severe vibration, shock loads, or high acceleration—common in traction motors or crushers—this version is strongly recommended. Although the initial cost is higher, it helps prevent catastrophic cage failures that could otherwise destroy the entire motor, resulting in lower total cost of ownership over time.
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We’re more than a supplier; we’re a manufacturing partner with 20+ years of R&D experience. Speak with our engineers, and you’ll find our expertise can solve your electrical erosion issues and significantly reduce long-term maintenance costs.
 
Email: info@sdtflbearings.com
Address: Room 501, Building 1, No. 4567, Tangye Middle Road, Jinan, China

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We're more than a supplier; we're a manufacturing partner with 20+ years of R&D experience. Speak with our engineers, and you'll find our expertise can solve your electrical erosion issues and significantly reduce long-term maintenance costs.

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